<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            width: 790px;
        }

        .line {
            width: 130px;
            height: 40px;
            float: left;
            overflow: hidden;
            border-bottom: 1px solid #eee;
            border-right: 1px solid #eee;
            /* 过渡效果。。。 */
        }

        .row1,
        .row2,
        .row3,
        .row4,
        .row5 {
            width: 790px;
            min-height: 40px;
        }
    </style>
</head>

<body>
    <div class="box">
    </div>
    </div>
    <script src="./js/index.js"></script>
</body>

</html>